#792 – Matrix Multiplication, Part II – Multiplying a Row by a Column

When you multiply two matrixes together, you perform a series of operations where you multiply a row in the first matrix by a column in the second matrix.  This multiplication results in a single term that will appear in the resulting matrix.

To multiply a row by a column, they must have the same number of elements.  If you consider each of them as vectors, you multiply them by calculating the dot product of the two vectors.

A dot product is calculated by multiplying the corresponding elements in the two vectors and then adding the terms together.

For example, we might multiply a row containing the values a, b, c with a column containing the values x, y, z as follows:

792-001

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #792 – Matrix Multiplication, Part II – Multiplying a Row by a Column

  1. Pingback: Dew Drop – April 5, 2013 (#1,521) | Alvin Ashcraft's Morning Dew

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